/**
 * Copyright (C) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import ISettingsController from './ISettingsController'

export default abstract class BaseSettingsController implements ISettingsController {
    protected getComponent: () => any;

    /**
     * Bind component.
     */
    bindComponent(component: any): ISettingsController{
        this.getComponent = () => component;

        // set default property values by component
        for (var key in this) {
            if (key in component) {
                this[key] = component[key];
            }
        }

        return this;
    }

    /**
     * Bind component's properties, note that only basic types can be transported.
     * Type like Resource may meet unexpected error.
     * If you want to transport resource string or color, ets. AppStorage is suggested @StorageLink.
     */
    bindProperties(componentProperties: string[], controllerProperties?: string[]): ISettingsController {
        for (let i = 0; i < componentProperties.length; i++) {
            this.defineBoundProperty(componentProperties[i], controllerProperties ? controllerProperties[i] : componentProperties[i]);
        }

        return this;
    }

    /**
     * Initialize data.
     */
    initData(): ISettingsController {
        return this;
    };

    /**
     * Subscribe listeners.
     */
    subscribe(): ISettingsController {
        return this;
    };

    /**
     * Unsubscribe listeners.
     */
    unsubscribe(): ISettingsController {
        return this;
    };

    /**
     * Define bound properties.
     */
    private defineBoundProperty(componentProperty: string, controllerProperty: string): void {
        let __v = this[controllerProperty];

        Object.defineProperty(this, controllerProperty, {
            get: function () {
                return __v;
            },
            set: function (value) {
                __v = value;
                this.getComponent()[componentProperty] = value;
            }
        });
    }

}